SPARK
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LX1801
"SPARK" for MED427A-1
CARLSBAD DIVISION
TARGET DATASHEET
DESCRIPTION KEY FEATURES Low peak ...
Description
www.DataSheet4U.com
LX1801
"SPARK" for MED427A-1
CARLSBAD DIVISION
TARGET DATASHEET
DESCRIPTION KEY FEATURES Low peak current consumption: <2mA 3V operation 2 Small form factor: 1.45mm Double/single output voltage option Solder bumped die
The MSC-LX1801 is the IC1 "Spark" for the MED427A-1 module. The "Spark" chip has an oscillator, a voltage doubler, and a level shifter. The oscillator is a "555" timer variant where the external resistor (Rref) determines the frequency. The voltage doubler increases the output (OUT) of the oscillator by a factor of 2 (times VDDLO). The voltage doubler also provides a single output voltage if disabled (EN2x). This level shifter shifts voltage inputs from the lower voltage (VDDlo) to the higher voltage (VDDhi).
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IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
BLOCK DIAGRAM
EN2X VDDlo Ref RREF ENhi VDDhi ENlo VSS
Voltage Doubler
2x
OUThi
Oscillator
VSS
VDDlo
Level Shifter
OUTlo
Simplified Block Diagram
LX1801
TJ (°C) 10 to 55
PACKAGE ORDER INFO Package Number LX1801
Copyright 2001 Rev. 0.2b, 2002-06-17
Microsemi
Carlsbad Division 5973 Aveniva Encinas, Suite 101, Carlsbad 92008, Fax (760) 431-0541
1
LX1801
"SPARK" for MED427A-1
CARLSBAD DIVISION
TARGET DATASHEET
ABSOLUTE MAXIMUM RATINGS Input Upper Supply Voltage (VDDhi)........................................................ 0.0V to +20.0V Input Lower Supply Voltage (VDDlo) .......................
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